/Engine/Source/Runtime/Experimental/Chaos/Public/PhysicsProxy/ClusterUnionPhysicsProxy.h
void Initialize_Internal ( [FPBDRigidsSolver](API\Runtime\Chaos\FPBDRigidsSolver) * RigidsSolver, [FPBDRigidsSolver::FParticlesType](API\Runtime\Chaos\FPBDRigidsSolver\FParticlesType) & Particles )